Orbit Fit and Astrometric record for 511554

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 511554    
# Created Thu Mar 28 01:08:18 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting     51 observations of     51
# Arc:   3.99y
# First observation: 2013/09/01
#  Last observation: 2017/08/30
# Chi-squared of fit:    25.37 DOF:     96 RMS:  0.12
# Min/Max residuals:    -0.74    0.61
# Exact a, adot, b, bdot, g, gdot:
  1.709217E-05  2.931811E-02 -1.939642E-06 -3.817878E-03  2.678237E-02 -2.073210E-03
# Covariance matrix:
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00  0.0000E+00
#      lat0       lon0       xBary       yBary       zBary        JD0
    3.038162   24.331306    0.719389    0.037649   -0.708320  2456537.030358
# Heliocentric elements and errors
Epoch:              2456536.5000  =  2013/09/01
Mean Anomaly:          339.06014 +/-     0.000
Argument of Peri:      189.58804 +/-     0.000
Long of Asc Node:      225.16396 +/-     0.000
Inclination:             7.94337 +/-     0.000
Eccentricity:         0.20252738 +/-    0.0000
Semi-Major Axis:     46.51967193 +/-    0.0000
Time of Perihelion: 2463277.5057 +/-       0.0
Perihelion:          37.09816460 +/-    0.0000
Aphelion:            55.94117926 +/-    0.0000
Period (y)              317.2950 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X           34.91596895 +/-    0.0000
Ecliptic Y           15.00191109 +/-    0.0000
Ecliptic Z            1.97890345 +/-    0.0000
Ecliptic XDOT        -0.00141501 +/-    0.0000
Ecliptic YDOT         0.00265110 +/-    0.0000
Ecliptic ZDOT        -0.00040083 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO   38.05394545 +/-    0.0000
Geocenter to KBO     37.33807598 +/-    0.0000
# Hcoef:  7.24

The following table shows the complete astrometric record for 511554. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (511554) followed by the observatory code and reference code for the source of the astrometry.

2013 09  01.52958  01 25 33.576  +12 15 22.92  23.4r 511554    568  C~2WZw      
2013 09  01.56842  01 25 33.449  +12 15 22.14  23.2r 511554    568  C~2WZw      
2013 10  30.38058  01 21 08.478  +11 48 25.51  22.9r 511554    568  C~2WZw      
2013 10  31.37152  01 21 03.789  +11 47 54.15  23.4r 511554    568  C~2WZw      
2013 10  31.37622  01 21 03.756  +11 47 53.97  23.4r 511554    568  C~2WZw      
2013 11  01.31737  01 20 59.341  +11 47 24.20  23.2r 511554    568  C~2WZw      
2013 11  01.35659  01 20 59.152  +11 47 22.89  23.1r 511554    568  C~2WZw      
2013 11  01.44974  01 20 58.698  +11 47 19.98  22.9r 511554    568  C~2WZw      
2013 11  27.37157  01 19 13.253  +11 34 45.22  23.2r 511554    568  C~2WZw      
2013 12  04.35483  01 18 52.370  +11 31 57.75  23.2r 511554    568  C~2WZw      
2013 12  29.30703  01 18 13.605  +11 25 12.78  23.1r 511554    568  C~2WZw      
2013 12  29.31790  01 18 13.601  +11 25 12.75  23.3r 511554    568  C~2WZw      
2014 07  25.51682  01 33 14.453  +12 44 26.27  23.2r 511554    568  C~2WZw      
2014 07  25.55817  01 33 14.460  +12 44 26.46  23.2r 511554    568  C~2WZw      
2014 07  25.59996  01 33 14.473  +12 44 26.71  23.2r 511554    568  C~2WZw      
2014 08  23.55641  01 32 43.664  +12 42 33.46  23.2r 511554    568  C~2WZw      
2014 08  23.60330  01 32 43.545  +12 42 32.88  23.0r 511554    568  C~2WZw      
2014 08  25.53767  01 32 38.772  +12 42 08.61  24.7u 511554    568  C~2WZw      
2014 08  25.54193  01 32 38.757  +12 42 08.53  25.1u 511554    568  C~2Gdr      
2014 08  25.54619  01 32 38.747  +12 42 08.47  24.7u 511554    568  C~2WZw      
2014 08  25.55046  01 32 38.742  +12 42 08.48  24.5u 511554    568  C~2WZw      
2014 08  25.55472  01 32 38.714  +12 42 08.26  25.1u 511554    568  C~2WZw      
2014 08  25.55898  01 32 38.704  +12 42 08.17  24.5u 511554    568  C~2WZx      
2014 08  27.44876  01 32 33.737  +12 41 42.66  23.4r 511554    568  C~2WZx      
2014 08  27.54519  01 32 33.469  +12 41 41.34  23.0r 511554    568  C~2WZx      
2014 09  18.37931  01 31 16.840  +12 34 38.29  23.0r 511554    568  C~2WZx      
2014 09  18.42403  01 31 16.648  +12 34 37.32  23.1r 511554    568  C~2WZx      
2014 09  23.46480  01 30 54.814  +12 32 30.91  23.1r 511554    568  C~2WZx      
2014 09  27.42812  01 30 36.81   +12 30 45.5   22.8R 511554    695  C~2Gdr      
2014 09  27.48193  01 30 36.54   +12 30 44.4         511554    695  C~2Gdr      
2014 10  22.42490  01 28 34.614  +12 18 14.67  23.1r 511554    568  C~2Gdr      
2014 10  22.46432  01 28 34.418  +12 18 13.45  23.1r 511554    568  C~2Gdr      
2014 10  22.50375  01 28 34.216  +12 18 12.18  22.9r 511554    568  C~2Gdr      
2014 10  23.42083  01 28 29.657  +12 17 43.13  22.9r 511554    568  C~2WZx      
2014 10  25.42600  01 28 19.734  +12 16 39.51  23.1r 511554    568  C~2WZx      
2014 11  19.23322  01 26 26.873  +12 03 59.64  23.2r 511554    568  C~2WZx      
2014 11  19.36622  01 26 26.331  +12 03 55.89  23.1r 511554    568  C~2WZx      
2014 11  21.21474  01 26 19.116  +12 03 04.03  23.2r 511554    568  C~2WZx      
2014 11  21.37712  01 26 18.467  +12 02 59.64  23.4r 511554    568  C~2WZx      
2015 02  18.23136  01 26 35.524  +11 54 53.23  23.2r 511554    568  C~2WZx      
2015 02  18.25610  01 26 35.629  +11 54 53.74  23.4r 511554    568  C~2WZx      
2015 09  15.51502  01 38 18.290  +13 00 25.12  23.3w 511554    568  C~2WZx      
2015 09  15.51940  01 38 18.265  +13 00 25.10  23.3w 511554    568  C~2WZx      
2015 09  15.57438  01 38 18.050  +13 00 23.77  23.2w 511554    568  C~2WZx      
2015 09  15.57846  01 38 18.029  +13 00 23.74  23.2w 511554    568  C~2WZx      
2015 10  09.44415  01 36 30.148  +12 49 54.82  23.1w 511554    568  C~2WZx      
2015 10  09.48680  01 36 29.937  +12 49 53.56  23.1w 511554    568  C~2WZx      
2015 10  13.48307  01 36 10.094  +12 47 53.46        511554    568  C~2WZx      
2017 01  31.22024  01 38 42.739  +12 38 32.41  23.4w 511554    568  C~2Gdr      
2017 08  25.59230  01 53 05.127  +13 53 09.76  23.3w 511554    568  C~2WZx      
2017 08  30.61365  01 52 53.203  +13 52 08.27  23.2w 511554    568  C~2WZx      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

     1   0.0000      0.00     0.07       0.00    -0.04
     2   0.0001      0.00     0.11       0.00    -0.14
     3   0.1611      0.00    -0.09       0.00    -0.09
     4   0.1638      0.00     0.02       0.00     0.04
     5   0.1639      0.00    -0.14       0.00     0.01
     6   0.1664      0.00     0.06       0.00     0.07
     7   0.1665      0.00     0.04       0.00     0.00
     8   0.1668      0.00    -0.08       0.00     0.04
     9   0.2378      0.00     0.02       0.00    -0.01
    10   0.2569      0.00    -0.04       0.00    -0.01
    11   0.3252      0.00     0.06       0.00    -0.11
    12   0.3252      0.00     0.07       0.00    -0.03
    13   0.8952      0.00     0.09       0.00    -0.09
    14   0.8954      0.00     0.03       0.00    -0.09
    15   0.8955      0.00     0.07       0.00    -0.03
    16   0.9747      0.00     0.06       0.00     0.02
    17   0.9749      0.00     0.02       0.00     0.00
    18   0.9802      0.00     0.10       0.00     0.02
    19   0.9802      0.00     0.05       0.00    -0.01
    20   0.9802      0.00     0.07       0.00    -0.01
    21   0.9802      0.00     0.16       0.00     0.05
    22   0.9802      0.00    -0.09       0.00    -0.11
    23   0.9802      0.00    -0.07       0.00    -0.15
    24   0.9854      0.00    -0.03       0.00     0.02
    25   0.9857      0.00     0.00       0.00     0.04
    26   1.0454      0.00     0.07       0.00    -0.09
    27   1.0456      0.00     0.06       0.00     0.02
    28   1.0594      0.00    -0.04       0.00     0.02
    29   1.0702      0.00    -0.47       0.00     0.23
    30   1.0704      0.00    -0.74       0.00     0.61
    31   1.1387      0.00     0.07       0.00    -0.06
    32   1.1388      0.00     0.13       0.00    -0.03
    33   1.1389      0.00     0.09       0.00    -0.05
    34   1.1414      0.00    -0.03       0.00    -0.01
    35   1.1469      0.00     0.10       0.00     0.04
    36   1.2148      0.00     0.07       0.00    -0.00
    37   1.2152      0.00     0.05       0.00     0.01
    38   1.2202      0.00     0.14       0.00    -0.02
    39   1.2207      0.00    -0.00       0.00     0.09
    40   1.4639      0.00     0.01       0.00    -0.02
    41   1.4640      0.00    -0.05       0.00    -0.00
    42   2.0369      0.00     0.07       0.00    -0.01
    43   2.0369      0.00    -0.04       0.00     0.07
    44   2.0371      0.00     0.07       0.00    -0.04
    45   2.0371      0.00     0.01       0.00     0.02
    46   2.1024      0.00    -0.03       0.00    -0.00
    47   2.1026      0.00     0.02       0.00     0.01
    48   2.1135      0.00     0.01       0.00    -0.05
    49   3.4160      0.00    -0.00       0.00    -0.03
    50   3.9810      0.00     0.05       0.00    -0.05
    51   3.9948      0.00    -0.02       0.00    -0.01

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

511554    quality flag:3

Type:       SCATEXTD  SCATEXTD  SCATEXTD

axisobj        46.796    46.796    46.796
ecceobj         0.206     0.206     0.206
incobj          7.934     7.934     7.934
qmin           36.011    36.008    35.960
qmax           57.211    57.266    57.242
amean          46.388    46.405    46.392
amin           45.977    46.003    45.986
amax           46.891    46.909    46.892
emean           0.206     0.206     0.206
emin            0.191     0.192     0.191
emax            0.222     0.223     0.221
imean           9.185     9.187     9.187
imin            8.456     8.455     8.452
imax           10.129    10.092    10.101
excite_mean     0.261     0.261     0.261
fracstop        1.000     1.000     1.000
cjmean          3.047     3.047     3.047

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       187.6     187.3     187.5
kozaiamp        180.0     180.0     179.9